Portable ground power unit



FIG. 1 is a top perspective view of a portable ground power unit;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The regularly spaced broken lines shown in the drawings depict portions of the article that form no part of the claimed design. The dash dot dash broken lines define the bounds of the claimed design and form no part thereof. 

CLAIM The ornamental design for a portable ground power unit, as shown and described. 